The Orange County District Attorney's office says 45-year-old Bryan William Anast was arraigned Monday and is being held on $1 million bail. He is charged with five felony counts of aggravated sexual assault of a child and possession of child pornography.

Anast was arrested last week at Disneyland, where he worked as a machinist who helped maintain rides.

The girl told sheriff's officials that Anast had assaulted her on four occasions between 1997 and 2000.

If convicted, he faces 63 years to life in prison.

Investigators are asking the public to help to identify additional victims.